| use super::*; |
| |
| type Element = (usize, &'static str); |
| |
| fn test_map() -> Vec<Element> { |
| let mut data = vec![(3, "three-a"), (0, "zero"), (3, "three-b"), (22, "twenty-two")]; |
| data.sort_by_key(get_key); |
| data |
| } |
| |
| fn get_key(data: &Element) -> usize { |
| data.0 |
| } |
| |
| #[test] |
| fn binary_search_slice_test() { |
| let map = test_map(); |
| assert_eq!(binary_search_slice(&map, get_key, &0), &[(0, "zero")]); |
| assert_eq!(binary_search_slice(&map, get_key, &1), &[]); |
| assert_eq!(binary_search_slice(&map, get_key, &3), &[(3, "three-a"), (3, "three-b")]); |
| assert_eq!(binary_search_slice(&map, get_key, &22), &[(22, "twenty-two")]); |
| assert_eq!(binary_search_slice(&map, get_key, &23), &[]); |
| } |